Wireless charger



FIG. 1 is a perspective view of a wireless charger, showing my new design;

FIG. 2 is a perspective view showing the design in a detached configuration;

FIG. 3 is a perspective view showing the wireless charger in an attached configuration;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view thereof.

The broken lines shown in the drawings illustrate portions of the wireless charger that form no part of the claimed design. 

CLAIM The ornamental design for a wireless charger, as shown and described. 